US7801605B2 - Disposable defibrillator electrode assembly - Google Patents

Disposable defibrillator electrode assembly Download PDF

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Publication number
US7801605B2
US7801605B2 US10/542,314 US54231405A US7801605B2 US 7801605 B2 US7801605 B2 US 7801605B2 US 54231405 A US54231405 A US 54231405A US 7801605 B2 US7801605 B2 US 7801605B2
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Prior art keywords
housing
defibrillator
recess
electrodes
sub
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US10/542,314
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US20060058846A1 (en
Inventor
William J. Smirles
Johnny Houston Anderson
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Stryker European Operations Ltd
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Heartsine Technologies Ltd
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Assigned to HEARTSINE TECHNOLOGIES LIMITED reassignment HEARTSINE TECHNOLOGIES LIMITED ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: ANDERSON, JOHNNY HOUSTON, SMIRLES, WILLIAM J.
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Assigned to STRYKER EUROPEAN OPERATIONS LIMITED reassignment STRYKER EUROPEAN OPERATIONS LIMITED ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: HEARTSINE TECHNOLOGIES LIMITED
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N1/00—Electrotherapy; Circuits therefor
    • A61N1/02—Details
    • A61N1/04—Electrodes
    • A61N1/0404—Electrodes for external use
    • A61N1/0408—Use-related aspects
    • A61N1/046—Specially adapted for shock therapy, e.g. defibrillation
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N1/00—Electrotherapy; Circuits therefor
    • A61N1/02—Details
    • A61N1/04—Electrodes
    • A61N1/0404—Electrodes for external use
    • A61N1/0472—Structure-related aspects
    • A61N1/048—Electrodes characterised by a specific connection between lead and electrode
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N1/00—Electrotherapy; Circuits therefor
    • A61N1/02—Details
    • A61N1/04—Electrodes
    • A61N1/0404—Electrodes for external use
    • A61N1/0472—Structure-related aspects
    • A61N1/0492—Patch electrodes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N1/00—Electrotherapy; Circuits therefor
    • A61N1/18—Applying electric currents by contact electrodes
    • A61N1/32—Applying electric currents by contact electrodes alternating or intermittent currents
    • A61N1/38—Applying electric currents by contact electrodes alternating or intermittent currents for producing shock effects
    • A61N1/39—Heart defibrillators
    • A61N1/3968—Constructional arrangements, e.g. casings
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N1/00—Electrotherapy; Circuits therefor
    • A61N1/18—Applying electric currents by contact electrodes
    • A61N1/32—Applying electric currents by contact electrodes alternating or intermittent currents
    • A61N1/38—Applying electric currents by contact electrodes alternating or intermittent currents for producing shock effects
    • A61N1/39—Heart defibrillators
    • A61N1/3975—Power supply

Definitions

  • This invention relates to a disposable electrode assembly for a portable defibrillator.
  • Portable defibrillators have been available for the last 20 years. The operation of these devices has always involved, at minimum, three actions: step (1) applying a power source to the device (either through a battery pack or a mains plug); step (2) plugging a set of defibrillation electrodes (pads) into the device and applying the electrodes to the patient's bare chest, and step (3) turning the device on (either via an on/off button or opening a lid, etc.).
  • the device In a public situation, e.g. a railway station, airport or the like, it is desirable that the device be operable by a lay member of the public without undue complication.
  • a disposable electrode assembly as specified in claim 1 .
  • the invention further provides a combination of a defibrillator and a disposable electrode assembly as specified in claim 7 .
  • a subsidiary benefit of the invention is that in conventional defibrillation using disposable pads and batteries, battery management must be carefully considered and constantly monitored.
  • the present invention separates the process of battery management from the defibrillation process by incorporating the power source for the defibrillator within the disposable electrode assembly.
  • the invention is also directed to a method by which the described apparatus operates and including method steps for carrying out every function of the apparatus.
  • FIG. 1 is a schematic diagram of a first embodiment of the invention
  • FIG. 2 shows a modification of the embodiment of FIG. 1 ;
  • FIGS. 3 to 9 are schematic diagrams of further embodiments of the invention.
  • FIG. 10 is an exploded perspective view of a practical implementation of the embodiment of FIG. 7 ;
  • FIG. 11 is a top perspective view of a further embodiment of the invention.
  • FIG. 12 is a top perspective view of the combined pad and battery housing of the embodiment of FIG. 11 , omitting the pads;
  • FIG. 13 is a top perspective view of the combined pad and battery housing of the embodiment of FIG. 11 , including the pads;
  • FIG. 14 is a perspective view of the underside of the combined pad and battery housing of the embodiment of FIG. 11 ;
  • FIG. 15 is a top perspective view of the defibrillator to which the combined pad and battery housing is fitted;
  • FIG. 16 shows the pads used in the embodiment of FIG. 11 ;
  • FIG. 17 is a cross-sectional view of the combined pad and battery housing of the embodiment of FIG. 11 , including the pads;
  • FIG. 18 is a top perspective view, similar to FIG. 13 , of a combined pad and battery housing of a still further embodiment of the invention.
  • FIG. 19 is a cross-sectional view of the combined pad and battery housing of FIG. 18 .
  • a first embodiment of disposable electrode assembly 10 for a portable defibrillator 12 comprises a pair of defibrillation electrodes (hereafter referred to simply as “pads”) 14 hermetically sealed in a pouch 16 from which they may be removed for use by removing a “tear-off” strip 17 .
  • Flexible electrically conductive leads 18 connect the pads 14 to respective ones of a pair of outer terminals 20 of a connector 22 .
  • the connector 22 also houses a set of batteries 24 which are connected in series across a pair of inner terminals 26 of the connector 22 .
  • the connector 22 is plugged into a complementary connector 28 of the defibrillator 12 .
  • the complementary connector 28 has a pair of outer terminals 30 which are engaged by the terminals 20 of the connector 22 , and a pair of inner terminals 32 which are engaged by the terminals 26 of the connector 22 .
  • the terminals 26 of the connector 22 are power output terminals which in use supply power to the defibrillator 12 via the terminals 32
  • the terminals 20 of the connector 22 are high voltage input terminals which receive from the defibrillator 12 , via the terminals 30 , a defibrillation voltage for application to the pads 14 .
  • the defibrillator 12 may be turned on automatically by insertion of the connector 22 into the connector 28 , or it may be turned on by some further action as will be described. In any event, save for the location of the batteries in the connector 22 , in all other respects the defibrillator may be entirely conventional.
  • FIG. 2 shows a modification to FIG. 1 , where the pouch 16 contains a voice module 34 comprising a speaker 36 , a speaker IC 37 , and its own power cell 38 . This is activated upon removing the tear-off strip 17 to give spoken instructions to the lay user how to plug in the connector 22 from which point the defibrillator itself shall take over the operation.
  • Voice modules 34 are well known and used, for example, in the novelty greetings card industry.
  • the power supply circuit which connects the batteries 24 in series within the connector 22 includes a spring biased contact 39 . This is biased towards a counter contact (not shown) but is maintained out of engagement with such counter contact by an insulating tab 40 interposed between the two. Removal of the tear-off strip 17 to open the pouch 16 pulls the tab 40 from under the contact 39 , allowing it to engage its counter contact and thus automatically complete the power supply circuit within the connector 22 .
  • a variation of this includes means for sensing when the pads 14 are separated, FIG. 4 , by low power monitoring circuitry internal to the defibrillator 12 which checks to see if an electrical connection 41 between the pads 14 has been broken.
  • the defibrillator 12 turns itself on when the connection 41 is sensed as broken, meaning that the pads 14 have been removed from the pouch 16 and separated.
  • One way of doing this is shown in the circuit diagram of FIG. 4A .
  • the pads 14 here individually referenced 14 A and 14 B to distinguish one from the other, are mounted on a release liner 15 within the pouch 16 (not shown).
  • the connection 41 having a resistance R 3 , is also mounted on the liner 15 and creates an electrical link between the two pads 14 A and 14 B. As described, the pads 14 A and 14 B are attached to the connector 22 containing the batteries 24 which supply a voltage V batt .
  • the pads 14 A and 14 B are connected to a changeover unit 80 (such as a relay) having changeover contacts 82 .
  • the changeover contacts 82 connect the pad 14 A to V batt and the pad 14 B to ground via a resistor R 1 and to the source of an FET Q 1 .
  • V batt is also be applied to the gate of Q 1 and to a resistor R 2 pulling up the drain of Q 1 . Resistor R 2 is sufficiently large that current drain from V batt is minimised. This state is maintained as long as the pads 14 remain attached to the release liner 15 .
  • either or both pads 14 are removed from the release liner 15 .
  • This voltage drop 84 is detected by the defibrillator control circuitry (not shown) which responds by switching over the contacts 82 to connect the pads 14 A and 14 B to respective high voltage terminals HV 1 and HV 2 within the defibrillator.
  • FIGS. 3 and 4 assume that the connector 22 is, in use, already plugged into the defibrillator 12 , so the battery power is only required to be applied when the pads are actually deployed for use. This contrasts with the embodiment of FIG. 1 where it is assumed that the connector 22 is not pre-connected to the defibrillator 12 , so that the mere act of plugging it in can apply power and turn the defibrillator on.
  • the batteries are not housed in the connector 22 but instead a flat battery pack 42 is mounted on the rear of one or both pads 14 .
  • the power supply circuit may include a spring contact 39 biased against a counter contact 46 but normally held electrically disconnected therefrom by an insulating tab 40 .
  • the tab 40 is fixed to a release liner 48 such that, when the liner 48 is on the pad 14 , the tab 40 is interposed between the contacts 39 and 46 . However, when the liner 48 is removed from the pad 14 the tab 40 is withdrawn from between the contacts 39 and 46 to complete the power circuit and power up the defibrillator 12 for use.
  • the pads 14 when the pads 14 are not in use they are stowed (attached, for example, by Velcro) in a shallow depression or recess 50 in the defibrillator 12 housing and the connectors 22 and 28 are pre-engaged (in FIG. 7 the two connectors are shown as a single item 22 / 28 for simplicity).
  • the batteries 24 are housed in the connector 22 , as in FIG. 1 .
  • the power supply circuit includes a pair of contacts 52 and 54 which are biased towards one another but normally held apart by an insulating pin 56 which is removably inserted into the defibrillator housing from outside.
  • This pin 56 also cooperates with the pad leads 18 (or with the pads 14 themselves) such that when the pads 14 are removed from the recess 50 the pin 56 is automatically removed from between the contacts 52 , 54 so that power from the batteries 24 is automatically connected to the defibrillator 12 .
  • FIG. 8 is similar to that of FIG. 7 except that the batteries 24 are again no longer housed in the connector 22 but come in the form of a flat battery pack 58 housed, together with the pads 14 , in a tray 60 which fits in the recess 50 . In this case either the act of removing the pads from the tray, or the act of removing the tray, removes the pin 56 from between the power contacts 52 , 54 .
  • FIG. 9 shows a variation of FIG. 7 wherein one of the pads 14 is fixed to the rear of the defibrillator 12 housing and its electrical connection to the defibrillator is either made directly through the defibrillator housing via a contact 62 in the housing wall or via a lead 18 and the connectors 22 / 28 as in FIG. 7 (where the connection to the pad 14 is made directly via the contact 62 there will only need to be one terminal 20 on the connector 22 and correspondingly only one terminal 30 on the connector 28 ).
  • the operation is similar to that of FIG. 7 except that the defibrillator 12 itself is placed on the patient's chest and effectively becomes one of the patient pads.
  • the other pad 14 performs the device turn-on operation as by pulling out the mechanical block (pin 56 ) in the power supply circuit when it is pulled away from the defibrillator 12 .
  • FIG. 10 is an exploded perspective view of a practical implementation of the embodiment of FIG. 7 (the leads 18 are not shown).
  • the defibrillator 12 comprises upper and lower housing halves 12 a and 12 b which contain a digital printed circuit board (PCB) 70 and a high voltage PCB 72 .
  • the batteries 24 are accommodated in the connector 22 which plugs into the socket connector 28 in the upper housing half 12 a .
  • the recess 50 is formed in the lower housing half 12 b and contains the pads 14 when they are not in use.
  • the insulating member 56 enters a slot 74 in the lower housing half 12 b to be interposed between the contacts 52 and 54 ( FIG. 7 ) and is operatively coupled to the pads 14 and/or their leads so that it is withdrawn from the slot 74 when the pads are removed from the recess 50 .
  • a further embodiment of the invention comprises a defibrillator 12 having a recess 100 ( FIG. 15 ) to slidably receive a housing 102 which accommodates both the batteries 24 and the pads 14 in common and also functions as the connector 22 .
  • the housing 102 comprises an upper shallow tray-like recess 103 A for accommodating the pads 14 (as shown in FIGS. 13 and 17 ) and a deeper recess 103 B occupying part of the area of the tray-like recess 103 A for accommodating the batteries 24 . Accordingly, the housing 102 has a stepped lower surface 104 , FIG. 14 , with a riser portion 104 A joining the two portions 104 B and 104 C of the lower surface which correspond respectively to the tray-like and battery recesses 103 A, 103 B respectively and which are accordingly at different levels.
  • the riser portion 104 A On the inside of the housing 102 the riser portion 104 A has pairs of high voltage input and power output terminals 20 , 26 respectively ( FIG. 11 ), the pads 14 being connected to respective ones of the terminals 20 by respective leads 18 and the batteries 24 being connected in series across the terminals 26 .
  • the leads 18 pass under a strain relief member 106 to prevent strain on the connection between the leads 18 and terminals 20 .
  • the terminals 20 , 26 pass fully through the wall of the housing 102 at the riser portion 104 A to appear exposed at the lower surface 104 , FIG. 14 .
  • the recess 100 in the defibrillator 12 has a stepped formation complementary to that of the housing 102 , the recess 100 extending to the edge 108 of the defibrillator 12 .
  • the recess 100 has a riser portion 100 A having pairs of terminals 30 , 32 for mating with the corresponding pairs of terminals 20 , 26 on the housing 102 , the terminals 30 , 32 extending through the wall of the defibrillator housing at the riser portion 100 A and being connected to the internal circuitry (not shown) of the defibrillator 12 .
  • the batteries 24 are inserted in the recess 103 B of the housing 102 and then the pads 14 are laid in the shallow recess 103 A over the batteries, FIG. 13 .
  • the leads 18 are neatly coiled up above the batteries 24 .
  • the pads are joined by a frangible link 41 ( FIG. 16 ) as previously described, this being connected by a short piece of cord 43 to the strain relief member 106 (or elsewhere to the housing 102 ).
  • the pads 14 are covered with a peel-off protective cover (not shown).
  • the housing 102 is slid into the recess 100 from the edge 108 of the defibrillator 12 , the housing 102 being slid in a direction substantially parallel to the plane of the shallow recess 103 A.
  • the sliding movement is guided by ribs 110 on opposite sides of the housing 102 engaging under corresponding ribs 112 on opposite sides of the recess 100 .
  • resilient ears 114 on opposite sides of the housing 102 engage slots 116 on opposite sides of the recess 100 , thereby retaining the housing 102 in position in the recess 100 .
  • the terminals 20 , 26 exposed on the underside of the housing 102 ( FIG. 14 ) mate with the terminals 30 , 32 respectively on the defibrillator 12 .
  • the covering over the pads 14 is peeled off and the pads 14 removed from the recess 103 A.
  • This act of removal severs the frangible link 41 thus powering up the defibrillator 12 as previously described (alternatively the cord 43 may be omitted and the link 41 severed by separation of the pads 14 ).
  • FIG. 11 where the pads 14 are shown deployed for use.
  • the housing 102 is removed from the defibrillator 12 by squeezing the ears 114 towards one another to disengage from the slots 116 and sliding the housing 102 out of the recess 100 . Now a fresh housing 102 containing pads and batteries ready for the next use of the defibrillator is slid into the recess 100 .
  • FIGS. 18 and 19 are views, similar to FIGS. 13 and 17 , of a combined pad and battery housing of a still further embodiment of the invention. Since the main defibrillator body 12 , as seen for example in FIG. 15 , remains substantially unchanged in this embodiment, only the combined pad and battery housing 102 is shown. As before, the housing 102 is slid into the recess 100 from the edge 108 of the defibrillator 12 until the resilient ears 114 engage the slots 116 to retain the housing 102 in position in the recess 100 with the terminals 20 , 26 mating with the terminals 30 , 32 respectively.
  • the tray-like recess 103 A is closed by a lid 200 which can be slid off the housing 102 in the direction of the arrow in FIGS. 18 and 19 by pulling on a tab 202 fixed to the front edge of the lid.
  • the pads 14 are removably fitted to the underside of the lid 200 , so that removal of the lid automatically removes the pads 14 from the recess 103 A.
  • the act of sliding the lid 200 out of the housing 102 automatically breaks the frangible link 43 (not shown in FIG. 19 ) to power up the device as previously described.
  • the lid 200 is releasably retained in position on the housing 102 by integrally moulded pips 204 on the edge of the housing which resiliently engage respective shallow depressions 206 on the edge of the lid.

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  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Radiology & Medical Imaging (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Cardiology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Electrotherapy Devices (AREA)
US10/542,314 2003-01-17 2004-01-15 Disposable defibrillator electrode assembly Active 2026-11-22 US7801605B2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
IES20030023 2003-01-17
IE20030023 2003-01-17
PCT/EP2004/000402 WO2004064919A1 (en) 2003-01-17 2004-01-15 Disposable defibrillator electrode assembly

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US20060058846A1 US20060058846A1 (en) 2006-03-16
US7801605B2 true US7801605B2 (en) 2010-09-21

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US (1) US7801605B2 (de)
EP (1) EP1606015B1 (de)
JP (1) JP4472688B2 (de)
AT (1) ATE501755T1 (de)
AU (1) AU2004206734B2 (de)
DE (1) DE602004031822D1 (de)
WO (1) WO2004064919A1 (de)

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US8798743B1 (en) 2013-03-04 2014-08-05 Zoll Medical Corporation Self-contained cardiac response unit
US8996138B2 (en) 2006-07-05 2015-03-31 Zoll Medical Corporation Breakaway electrical connections for defibrillation electrode package
US9091718B2 (en) 2011-09-15 2015-07-28 Zoll Medical Corporation Testing electrical connections between cardiac resuscitation devices and external electrodes
US9788735B2 (en) 2002-03-25 2017-10-17 Masimo Corporation Body worn mobile medical patient monitor
US11266826B2 (en) 2018-09-26 2022-03-08 Avive Solutions, Inc. Electrode pad cartridge for defibrillators
US12194305B2 (en) 2018-09-26 2025-01-14 Avive Solutions, Inc. Electrode pad cartridge for defibrillators

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WO2006070313A2 (en) * 2004-12-27 2006-07-06 Koninklijke Philips Electronics, N.V. Otc automatic external defibrillator with quick install battery
US8010190B2 (en) 2006-05-26 2011-08-30 Cardiac Science Corporation CPR feedback method and apparatus
EP2157962A2 (de) * 2007-06-01 2010-03-03 Cardiac Science, Inc. System, verfahren und gerät zur unterstützung eines retters bei der wiederbelebung
JP5046031B2 (ja) * 2008-01-16 2012-10-10 日本光電工業株式会社 自動体外式除細動器のスイッチ構造。
WO2010033992A1 (en) * 2008-09-22 2010-03-25 Physio-Control, Inc. Electrical connection assembly for medical devices
US8428751B2 (en) * 2010-03-18 2013-04-23 Covidien Lp Electrode delivery system
US9072885B2 (en) 2012-09-27 2015-07-07 Covidien Lp Systems for hydrating defibrillation electrodes
DE102018001251A1 (de) 2018-02-16 2019-08-22 Arnulf Deinzer Juxtakorporaler Defibrillator
KR102162933B1 (ko) * 2018-09-28 2020-10-07 주식회사 씨유메디칼시스템 진동자를 구비한 웨어러블 제세동기용 전극 조립체
USD926323S1 (en) 2020-03-30 2021-07-27 Zoll Medical Corporation Automated external defibrillator electrode pad
JP7502907B2 (ja) 2020-06-15 2024-06-19 日本光電工業株式会社 自動体外式除細動器
WO2024137945A1 (en) * 2022-12-21 2024-06-27 Hearthero, Inc. Cardiac pad wire connector

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US10335033B2 (en) 2002-03-25 2019-07-02 Masimo Corporation Physiological measurement device
US11484205B2 (en) 2002-03-25 2022-11-01 Masimo Corporation Physiological measurement device
US10869602B2 (en) 2002-03-25 2020-12-22 Masimo Corporation Physiological measurement communications adapter
US9788735B2 (en) 2002-03-25 2017-10-17 Masimo Corporation Body worn mobile medical patient monitor
US9795300B2 (en) 2002-03-25 2017-10-24 Masimo Corporation Wearable portable patient monitor
US9872623B2 (en) 2002-03-25 2018-01-23 Masimo Corporation Arm mountable portable patient monitor
US10213108B2 (en) 2002-03-25 2019-02-26 Masimo Corporation Arm mountable portable patient monitor
US10219706B2 (en) 2002-03-25 2019-03-05 Masimo Corporation Physiological measurement device
US8996138B2 (en) 2006-07-05 2015-03-31 Zoll Medical Corporation Breakaway electrical connections for defibrillation electrode package
US9091718B2 (en) 2011-09-15 2015-07-28 Zoll Medical Corporation Testing electrical connections between cardiac resuscitation devices and external electrodes
US9504397B2 (en) 2013-03-04 2016-11-29 Zoll Medical Corporation Self-contained cardiac response unit
US8798743B1 (en) 2013-03-04 2014-08-05 Zoll Medical Corporation Self-contained cardiac response unit
US9179866B2 (en) 2013-03-04 2015-11-10 Zoll Medical Corporation Self-contained cardiac response unit
US11266826B2 (en) 2018-09-26 2022-03-08 Avive Solutions, Inc. Electrode pad cartridge for defibrillators
US11331471B2 (en) 2018-09-26 2022-05-17 Avive Solutions, Inc. Electrode pad cartridge for defibrillators
US12194305B2 (en) 2018-09-26 2025-01-14 Avive Solutions, Inc. Electrode pad cartridge for defibrillators

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US20060058846A1 (en) 2006-03-16
EP1606015B1 (de) 2011-03-16
ATE501755T1 (de) 2011-04-15
AU2004206734B2 (en) 2009-07-30
DE602004031822D1 (de) 2011-04-28
WO2004064919A1 (en) 2004-08-05
AU2004206734A1 (en) 2004-08-05
JP2006516208A (ja) 2006-06-29
EP1606015A1 (de) 2005-12-21
JP4472688B2 (ja) 2010-06-02

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